Linked List-3 | 206. Reverse Linked List | 🔥 Beginner, Medium & Advanced Level! #easy

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Leetcode: https://leetcode.com/problems/reverse-linked-list/description/
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Notes: https://github.com/team-codebug/leetcode/blob/main/DSA_In_90Days/3_Linked_List/Linked_List_3_206.%20Reverse%20Linked%20List.svg

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🔍 Leetcode 206: Reverse Linked List - Step-by-Step Solution! 🔍

🚀 In this video, we solve the Reverse Linked List problem from Leetcode (#206) using both iterative and recursive approaches to efficiently reverse a singly linked list.

✅ Iterative Approach:
1️⃣ Initialize two pointers: prev (set to null) and curr (pointing to the head).
2️⃣ Traverse the list while reversing the next pointer of each node.
3️⃣ Update prev to become the new head.
📌 Time Complexity: O(n) | Space Complexity: O(1)

✅ Recursive Approach:
1️⃣ Recursively call the function on the next node until reaching the end.
2️⃣ Reverse pointers during the backtracking phase.
3️⃣ The last node becomes the new head.
📌 Time Complexity: O(n) | Space Complexity: O(n) (due to recursion stack)

📌 What You’ll Learn:
✔️ Problem statement & examples
✔️ Step-by-step coding walkthrough
✔️ Time & space complexity analysis
✔️ Choosing between iterative and recursive solutions
✔️ Edge cases and best practices

👨‍💻 Code Implementation: [GitHub/Link]
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Видео Linked List-3 | 206. Reverse Linked List | 🔥 Beginner, Medium & Advanced Level! #easy канала CTO Bhaiya